Among cold-blooded animals
, plant eaters were around 33 times as heavy as meat eaters.
The animals fell right between cold-blooded animals
and warm-blooded ones.
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Summary: TEHRAN (FNA)- Scientists have known for nearly a century that cold-blooded animals
, such as worms, flies and fish all live longer in cold environments, but have not known exactly why.
We studied the hearts of cold-blooded animals
like lizards, frogs and zebrafish, and we investigated the gene that determines which parts of the heart are responsible for conducting the activating current," Dr Jensen.
Juggernaut, gender unknown, was part of a group of 17 endangered sea turtles rescued off Cape Cod in the fall after they washed ashore because of a "cold stunning" - a sort of hypothermia that sets in when the water gets too cold for the cold-blooded animals
This system might be a modification of an ancient circadian control system that first developed in other organisms, including cold-blooded animals
, whose daily biological cycles are affected by external temperature changes.
For cold-blooded animals
-- including insects, reptiles and amphibians - the impact is direct: experiments suggest that an upward tick of 1 degree Celsius translates into roughly a 10 percent increase in metabolism, the rate at which an organism uses energy.
Generally, cold-blooded animals
respond to warming conditions by increasing growth rates,' he says.
Ann Ovenstone, of the International Tortoise Association, which is based in Sully, Vale of Glamorgan, said: "Terrapins are cold-blooded animals
and they need heat, so it is a wonder they didn't freeze to death.